IBM AS/400E User-Dened File System (UDFS)

Case-Sensitivity
QOPT is case-insensitive. It converts lowercase English alphabetic characters to
uppercase when used in object names. Therefore, the path name
/QOPT/volume/dir/file represents the same path as /QOPT/VOLUME/DIR/FILE..
Security and Authorization
The QOPT file system offers volume-level security, as opposed to file or
directory-level security. Each optical volume is secured by an authorization list. If a
user needs access to directories or files on a volume, they will need access to the
optical volume. The system administrator, or a user with authorization list
management authority, can grant access by doing the following:
1. Use the Work with Optical Volumes (WRKOPTVOL) command to find out which
authorization list secures the volume.
2. Use the Edit Authorization List (EDTAUTL)command to add the user to the
authorization list.
For more information on optical security, see the book
Optical Support, SC41-4310.
User-Defined File System (UDFS)
Figure 52. The UDFS file system accessed through the NFS Server
62 OS/400 Network File System Support V4R4
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